Improvement in regulating and adjusting bands used in driving machinery



2Sheets--Sheeti. C. ANDERSON. Regulating and Adjusting Bands used inDriving Machinery.

No. 164,411. Patentedlunel5,i875.

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Regulating and Adjusting Bands used in Driving Machinery.

N0. 164,411. Patentediunei5,i875.

valtzorney THE GRAPHIC C0.PHOTO -LITH.39&4\ PARK PLACEJLY.

UNITED STATES CHARLES ANDERSON, OF FETTYKIL,

LESLIE, NORTH BRITAIN, ASSIGNOR OF TWO-THIRDS HIS RIGHT TO PUSEY, JONES86 (30., OF WVILMINGTON, DELAWARE, AND CARL HOFMANN, OF OARLSRUHE,GERMANY.

IMPROVEMENT IN REGULATING AND ADJUSTING BANDS USED IN DRIVING MACHINERY.

Specification forming part of Letters Patent No. 164, 1 1 1, dated J une15, 1875 application filed April 23, 1875.

To all whom it may concern:

Be it known that I, CHARLES ANDERSON, of Fettykil, Leslie, in the countyof Fife, North Britain, a subject of the Queen of Great Britain, haveinvented certain new and useful Improvements in Apparatus for Regulatingor Adjusting the Position of Endless Traveling Webs or Bands employed invarious kinds of machinery; and I do hereby declare the nature of mysaid invention, and the manner in which the same is to be performed, tobe particularly described and ascertained in and by the followingstatement.

My said invention relates to an improved system or combination ofmechanism, for the purpose of regulating or controlling endlesstraveling webs or bands employed in various kinds of machinery, whensuch webs or bands depart from their usual-course. The subjectmatterclaimed is hereinafter specifically designated.

To carry out the objects of my invention, I employ a guiding orconducting roller, which is supported on a framing in suitable bearings.The band or web rests on and passes over this roller, and when at workgives it a revolving motion. Stretching across the web or band is a rodor bar supported on a lever or levers turning on a stud or studs on theframing or other suitable place. 011 this rod are fixed guide-bladesclose to but clear of each edge of the web or band. Theconducting-rollers are mounted in bearings in a bush movable in a box bymeans of a screw-shaft turning in hearings in the said box, and passingthrough the bush. Gear-wheels mounted on the screwshaft mesh withcorresponding gears mounted loosely on stud-axes. Star or ratchet wheelsmounted upon the collars of the gears, and movable endwise upon butturning with said collars, are connected by a suitable clutch to arocking lever pivoted on the frame, and connected with the rod carryingthe guide-blades. A crank-arm, having a beveled or ratcheted end, issecured on the spindle of the conducting-roller, which lies equidistantbetween the two star wheels. When the web or band is in its trueposition the star or ratchet wheels clear the bevel-plate.

It results from the organization of the mechanism above described thatany lateral movementof the web orband carries the guide-plates, andconsequently the rocking lever and starwheels, with it, so that one ofthe latter will be brought within range of the crank-arm, and will berevolved by it, thereby revolving the screw-shaft, and moving the bushlengthwise ot'the box, thus moving one end of the guidingrollerlaterally, and stretching the web or band on that side, which change notonly prevents further lateral displacement of the web or band, butcorrects the tendency to such displacements, and restores the web orband to its normal position.

In order that my said invention may be properly understood, I nowproceed more particularl y to set forth the system, mode, or manner inor under which the same is or may be used, or practically carried intoeffect, reference being had, for the sake of more complete elucidation,to the accompanying drawings, in which Figure l is a plan of so much ofmy improved apparatus as is necessary to illustrate the subject-matterherein claimed 5 Fig. 2, an end View thereof; and Fig. 3, a transversesection through the traveling bush or bearing of the conducting-roller.

A web or band, A, (shown in dotted lines in the drawing,) passes over aguide or conducting roller, B, one of the journals, b, of which ismounted in a bush, 1), movable freely lengthwise in a box, 0, by meansof a screw-shaft,

D, mounted in suitable hearings in the box. Bevel-wheels E E, mounted onand turning with this screw-shaft, mesh with corresponding bevel gears FF, turning freely on studaxles G G. Star-wheels H H move freely endwiseupon but turn with their respective bevel-gears, being mounted oncollars or sleeves projecting from said bevel-gears, and connected withthem by a spline, or in any other equivalent well-known ways. Eachstar-wheel is connected by means of a grooved collar, h, and yoke ofwell-known construction, with a lever, 1, rocking on a fulcrum, i, andpin-jointed to one end of a slide rod-or bar, J, which carriesguide-plates K K, between which the web or band travels. The other endof this sliderod is supported by a pivoted radius bar, J, or in otherwell-known ways. Acrank, L, having a beveled or ratcheted edge, Z, ismounted on the movable end of the guide or conducting roller, andrevolves with it equidistantly between the star-wheels, provided theband be running straight. The other end of the conducting-roller ismounted in suitable bearings on the frame.

The operation of the machine is such that when the web or band istraveling in the direction indicated by the arrows, Figs. 1 and 2,should it run toward the right side, or that side which is opposite themovable end of the conducting-roller, it would bear against theguide-plate K, and draw the slide bar J to the right, thus forcing thestar-wheel H to the right, as indicated by the small arrow on therocking lever I. This lateral movement of the star-wheel would bring itwithin range of the crank L on the condueting-roller, which wouldrevolve it, the bevel-gear F, the bevelwheel E, and the screw-shaft D inthe direction indicated by the arrow thereon.

The revolution of the screw shaft would move the bearing of theconducting-roller away from the bevelwheel that actuates it, and thustighten the web or band on the side from which it was deflected, theeffect of which would be to bring the web or band back to its normalcondition. As it returns to this position it, of course, moves theguide-plate K, and, through the slide-bar and rocking lever, releasesthe star-wheel from the path of the crank-arm, and consequently stopsthe movement of the screw-shaft, which remains quieseent so long as theband works truly.

The operation above described would be performed by the other set ofgears were the web or band traversing in the opposite direction to thatindicated by the arrows-that is, supposing the deflection to be towardthe right, or were the deflections to take place toward the left insteadof toward the right, with the band running in the direction indicated inthe drawings.-

I claim as of my own invention- 1. The hereinbefore-described apparatusfor regulating or adjusting the position of endless traveling webs orbands employed in various kinds of machinery, said apparatus consistingof the combination of an endless traversing web or band, aconducting-roller revolved by the band, and having one of its bearingsmovable, a screw-shaft traversing said bearing, gearing actuating saidscrew-shaft, and driven by a rotating arm on the conducting-roller, andclutch mechanism operated by the lateral deflection of the web or banditself, to actuate the gearing, substantially as hereinbefore set forth.

2. The combination of the endless traversing web or band, theconducting-roller, actuated thereby, the movable bearing of theconducting-roller, the screw-shaft traversing said bearing, a revolvingarm or crank on the conducting-roller, gearing for actuating thescrewshaft on each end thereof, and clutch mechanism actuated by thelateral deflection of the guide itself, arranged on opposite sides ofthe revolving arm, whereby the screw-shaft is revolved in oppositedirections, according as the web or band is deflected to one side or theother by means of a crank-arm revolving continuously in one direction.

CHARLES ANDERSON.

Witnesses:

O. B. PITBLADO,

Clerk, Leslie, Fife. J. PITBLADO,

Clerk, Leslie, FL 6.

